The function that displays the center of lift, the center of mass and the center of thrust must be updatet.
Now it only displays an "airplane mode". it must add an "helicopter mode" and an "hybrid mode", for creations with moving parts
(i hope anybody understand what i try to say)
I understand where you're going with this, but it's SimplePlanes, not SimpleVehicles. you can very easily create helicopters and hybrid vehicles if you know what you're doing and have a general sense of how they work. For example, I didn't need a helicopter mode when I made my Hexacopter, I just made it the way I know a real one could work. The same goes with hybrid vehicles. If you know what you're doing, you'll be able to get the job done and do it well. It would be nice to have a shortcut, though.